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Scale stick Procat 12", 1:20,1:25,1:50,1:100,1:125,1:400
A lightweight and durable scale stick / ratio ruler made of aluminum. Scale sticks are used in various dimensional conversions, e.g. in design and floor plan work. The six most common ratio conversions are marked on the ruler, which allows you to convert real-world measurements to a reduced size for design paper.
The scale bar is 30 cm (12"). Includes scales: 1:20,1:25,1:50,1:100,1:125,1:400